EP 1914726 A1 20080423 - base station of a telephone system and telephone system comprising such as a base station
Title (en)
base station of a telephone system and telephone system comprising such as a base station
Title (de)
Basisstation in einem Telefonsystem und Telefonsystem mit einer solchen Basisstation
Title (fr)
Station de base dans un système téléphonique et système téléphonique comprenant une telle station de base
Publication
Application
Priority
EP 06122359 A 20061016
Abstract (en)
The invention relates to a base station (BS) of a telephone system for setting up a telephone connection with a receiving party being arranged to communicate with at least one handset (HS). The base station (BS) is arranged to receive a first signal from a first microphone associated with one of the base station (BS) and the at least one handset (HS). The base station (BS) is arranged to receive a second signal from a second microphone other than from which the first signal is received. The base station (BS) comprises a subtracter (SU) and an adaptive finite impulse response filter (FIR) and is arranged to subtract the second signal from the first signal after the second signal is being processed by an adaptive finite impulse response filter (FIR). This results in a processed first signal that is to be transmitted by the base station (BS) to the receiving party.
IPC 8 full level
G10L 21/02 (2006.01); G10L 21/0208 (2013.01); H04M 1/72502 (2021.01); G10L 21/0216 (2013.01)
CPC (source: EP)
G10L 21/0208 (2013.01); H04M 1/6033 (2013.01); H04M 1/72502 (2013.01); G10L 2021/02165 (2013.01); G10L 2021/02166 (2013.01)
Citation (search report)
- [X] EP 1675365 A1 20060628 - BROADCOM CORP [US]
- [XY] WO 2006066618 A1 20060629 - FREESCALE SEMICONDUCTOR INC [US], et al
- [Y] EP 0411360 A1 19910206 - BLAUPUNKT WERKE GMBH [DE]
- [A] EP 0856834 A2 19980805 - NEC CORP [JP]
- [A] WIDROW B ET AL: "ADAPTIVE NOISE CANCELLING: PRINCIPLES AND APPLICATIONS", PROCEEDINGS OF THE IEEE, IEEE. NEW YORK, US, vol. 63, no. 13, 1 December 1975 (1975-12-01), pages 1692 - 1716, XP000567974, ISSN: 0018-9219
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1914726 A1 20080423; AT E472721 T1 20100715; DE 602007007503 D1 20100812; EP 2074400 A1 20090701; EP 2074400 B1 20100630; WO 2008048096 A1 20080424
DOCDB simple family (application)
EP 06122359 A 20061016; AT 07834635 T 20071015; DE 602007007503 T 20071015; EP 07834635 A 20071015; NL 2007050497 W 20071015